Below are tree companies recommended by neighbors for SOD treatment and tree trimming, many of whose charges are very reasonable.

Tree Solutions
ISA Certified arborist
Method: Spray and injection
Don Cox who sprayed for many local homeowners last year/good feedback), James (Jim) Neve
650-269-0540
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www.TreeSolutions.com

Arborwell
888-969-8733
www.arborwell.com

Baja Tree Service
Mike Perez
Cell 408-593-8715 or 408-294-4058

The Care of Trees
Jess Running
650-475-5400
www.thecareoftrees.com

Davey Tree Company
Brisbane
415-468-9180
www.daveytree.com

Sierra Tree Service
Tony Sierra
Cell 408-781-2143

S.P. McClenahan Company
650-326-8781
www.spmcclenahan.com